/* ===== Fonts (bundled, works offline) ===== */
@font-face{font-family:"Readex";font-weight:600;font-display:swap;src:url(fonts/readex-pro-arabic-600-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0898-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:"Readex";font-weight:700;font-display:swap;src:url(fonts/readex-pro-arabic-700-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0898-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:"Readex";font-weight:600;font-display:swap;src:url(fonts/readex-pro-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Readex";font-weight:700;font-display:swap;src:url(fonts/readex-pro-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* ===== Tokens ===== */
:root{
  --bg:#f5f6fb; --surface:#ffffff; --surface-2:#fafbfd; --ink:#17173a; --muted:#585c7a; --line:#e2e4ef;
  --navy:#1c1b4a; --navy-d:#0e0d2c; --teal:#0a8ea3; --teal-d:#07687a; --teal-s:#e1f3f6;
  --amber:#c98a1c; --amber-s:#fff5df; --green:#1e8a5a; --green-s:#e5f5ed; --red:#c4473d; --red-s:#fdeceb;
  --indigo-s:#ecebf7; --shadow:0 1px 2px rgba(20,20,60,.06),0 8px 24px -12px rgba(20,20,60,.18);
  --hero-a:#0e0d2c; --hero-b:#1d1b52; --radius:16px; --maxw:1180px;
  --fb:"IBM Plex Sans Arabic","Segoe UI",Tahoma,"Noto Sans Arabic",system-ui,sans-serif; --fh:"Readex","IBM Plex Sans Arabic","Segoe UI",Tahoma,sans-serif;
}
:root[data-theme="dark"]{
  --bg:#0c0c22; --surface:#15153a; --surface-2:#1a1a44; --ink:#ecebfa; --muted:#a6a9c8; --line:#2a2a58;
  --teal:#34c3d8; --teal-d:#5fd3e4; --teal-s:#10343f; --amber:#f0b24a; --amber-s:#3a2d12; --green:#4ed59b; --green-s:#12372a;
  --red:#ff8a7e; --red-s:#3e1d1f; --indigo-s:#1f1f4d; --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
  --hero-a:#07061c; --hero-b:#16154a; --navy:#14133a;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0c0c22; --surface:#15153a; --surface-2:#1a1a44; --ink:#ecebfa; --muted:#a6a9c8; --line:#2a2a58;
    --teal:#34c3d8; --teal-d:#5fd3e4; --teal-s:#10343f; --amber:#f0b24a; --amber-s:#3a2d12; --green:#4ed59b; --green-s:#12372a;
    --red:#ff8a7e; --red-s:#3e1d1f; --indigo-s:#1f1f4d; --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
    --hero-a:#07061c; --hero-b:#16154a; --navy:#14133a;
  }
}

/* ===== Base ===== */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.85 var(--fb);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{font-family:var(--fh);font-weight:700;line-height:1.4;margin:0 0 .5em;color:var(--ink)}
p{margin:0 0 1em}
a{color:var(--teal-d);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:6px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
.muted{color:var(--muted)}
.latin{direction:ltr;unicode-bidi:isolate;display:inline-block}
.skip{position:absolute;inset-inline-start:12px;top:-60px;background:var(--teal);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{top:10px}

/* ===== Header ===== */
.hdr{position:sticky;top:0;z-index:50;background:var(--navy);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.hdr .wrap{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font:700 17px var(--fh);white-space:nowrap}
.brand:hover{text-decoration:none}
.brand i{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#0a8ea3,#1e8a5a);display:grid;place-items:center;font-style:normal;font-size:18px;box-shadow:0 4px 14px -4px rgba(10,142,163,.7)}
.nav{display:flex;gap:2px;margin-inline-start:12px;flex:1}
.nav>a,.nav .dd>button{color:#d9d9f2;background:none;border:0;padding:8px 12px;border-radius:10px;font:500 15px var(--fb);display:inline-flex;align-items:center;gap:6px}
.nav>a:hover,.nav .dd>button:hover,.nav a[aria-current="page"]{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.dd{position:relative}
.dd-menu{position:absolute;inset-inline-start:0;top:calc(100% + 8px);min-width:290px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;display:none}
.dd:hover .dd-menu,.dd:focus-within .dd-menu,.dd.open .dd-menu{display:block}
.dd-menu a{display:flex;gap:10px;align-items:center;padding:9px 12px;border-radius:9px;color:var(--ink);font-size:15px}
.dd-menu a:hover{background:var(--indigo-s);text-decoration:none}
.dd-menu a b{font:700 12px var(--fh);color:var(--teal-d);min-width:22px;text-align:center}
.icon-btn{background:rgba(255,255,255,.08);border:0;color:#fff;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-size:18px}
.icon-btn:hover{background:rgba(255,255,255,.18)}
.burger{display:none}
@media (max-width:980px){
  .burger{display:grid;order:-1;margin-inline-start:0}
  #themeBtn{margin-inline-start:auto}
  .nav{position:fixed;inset:64px 0 0 0;background:var(--navy);flex-direction:column;padding:16px 20px;overflow:auto;display:none;margin:0;gap:4px}
  .nav.open{display:flex}
  .nav>a,.nav .dd>button{font-size:17px;padding:12px}
  .dd-menu{position:static;display:block;background:transparent;border:0;box-shadow:none;padding:0 12px;color:#fff}
  .dd-menu a{color:#cfd0ee}.dd-menu a:hover{background:rgba(255,255,255,.08)}
  .dd>button{pointer-events:none;opacity:.7;font-size:13px!important}
}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(900px 500px at 12% 8%,rgba(10,142,163,.35),transparent 60%),radial-gradient(700px 500px at 90% 90%,rgba(30,138,90,.3),transparent 60%),linear-gradient(160deg,var(--hero-a),var(--hero-b))}
.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.22) 1px,transparent 1.5px);background-size:46px 46px;opacity:.35;mask-image:radial-gradient(circle at 70% 40%,#000,transparent 70%)}
.hero .wrap{position:relative;padding-block:72px 84px}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font:600 14px var(--fh);color:#7fe0ef;background:rgba(127,224,239,.1);border:1px solid rgba(127,224,239,.25);padding:6px 14px;border-radius:99px;margin-bottom:22px}
.hero h1{font-size:clamp(34px,5.4vw,62px);color:#fff;margin-bottom:.35em;letter-spacing:-.01em;line-height:1.3}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#7fe0ef,#8be9b5);-webkit-background-clip:text;background-clip:text;color:transparent;padding-block:.1em .35em}
.hero p.lead{font-size:clamp(18px,2.2vw,22px);color:#cfd1f0;max-width:680px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid transparent;background:var(--teal);color:#fff;padding:12px 22px;border-radius:12px;font:600 16px var(--fb);transition:.18s}
.btn:hover{background:var(--teal-d);text-decoration:none;transform:translateY(-1px)}
.btn.amber{background:#e0a02e;color:#201500}.btn.amber:hover{background:#efb447}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}.btn.ghost:hover{background:rgba(255,255,255,.12)}
.btn.line{background:transparent;color:var(--teal-d);border-color:var(--line)}.btn.line:hover{background:var(--teal-s)}
.btn.sm{padding:7px 14px;font-size:14px;border-radius:10px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px 38px;margin-top:46px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stats div b{display:block;font:700 34px var(--fh);color:#fff;line-height:1.2}
.hero-stats div span{font-size:14px;color:#aeb1dd}

/* ===== Sections ===== */
.sec{padding-block:64px}
.sec.alt{background:var(--surface-2);border-block:1px solid var(--line)}
.sec-h{max-width:720px;margin-bottom:34px}
.sec-h .kicker{font:700 13px var(--fh);color:var(--teal-d);letter-spacing:.04em}
.sec-h h2{font-size:clamp(26px,3.4vw,38px);margin:.2em 0 .3em}
.sec-h p{color:var(--muted);font-size:18px}

/* Journey */
.journey{position:relative;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.stop{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 18px;box-shadow:var(--shadow);transition:.2s;color:var(--ink);overflow:hidden}
.stop:hover{transform:translateY(-4px);border-color:var(--teal);text-decoration:none}
.stop .no{font:700 54px/1 var(--fh);color:var(--line);position:absolute;inset-inline-end:16px;top:10px;transition:.2s}
.stop:hover .no{color:var(--teal-s)}
.stop .tag{font:700 12px var(--fh);color:var(--teal-d);margin-bottom:6px}
.stop h3{font-size:20px;margin-bottom:4px;position:relative}
.stop p{font-size:15px;color:var(--muted);line-height:1.7;flex:1}
.stop .meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:8px}
.bar{height:6px;background:var(--line);border-radius:9px;overflow:hidden;flex:1}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--green));border-radius:9px;transition:width .5s}
.stop.extra{background:linear-gradient(160deg,var(--indigo-s),var(--surface))}

.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.g2{grid-template-columns:repeat(auto-fill,minmax(420px,1fr))}
@media(max-width:520px){.g2{grid-template-columns:1fr}}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.tile h3{font-size:19px;display:flex;gap:10px;align-items:center}
.tile .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--teal-s);font-size:20px;flex:none}
.tile p{color:var(--muted);font-size:16px;line-height:1.75;margin-bottom:0}
a.tile{color:var(--ink)}a.tile:hover{text-decoration:none;border-color:var(--teal);transform:translateY(-3px);transition:.2s}

.callout{display:flex;gap:16px;align-items:flex-start;background:var(--amber-s);border:1px solid var(--amber);border-radius:var(--radius);padding:20px 22px;margin-block:22px}
@supports (color: color-mix(in srgb, red 50%, blue)) { .callout { border: 1px solid color-mix(in srgb,var(--amber) 40%,transparent) } }
.callout .ic{font-size:26px}
.callout h4{margin:0 0 4px;font-size:17px}
.callout p{margin:0;font-size:16px}
.callout.teal{background:var(--teal-s);border-color:var(--teal)}
@supports (color: color-mix(in srgb, red 50%, blue)) { .callout.teal { border-color: color-mix(in srgb,var(--teal) 40%,transparent) } }
.callout.red{background:var(--red-s);border-color:var(--red)}
@supports (color: color-mix(in srgb, red 50%, blue)) { .callout.red { border-color: color-mix(in srgb,var(--red) 40%,transparent) } }
.callout.green{background:var(--green-s);border-color:var(--green)}
@supports (color: color-mix(in srgb, red 50%, blue)) { .callout.green { border-color: color-mix(in srgb,var(--green) 40%,transparent) } }

/* ===== Page header (inner pages) ===== */
.phead{position:relative;overflow:hidden;color:#fff;background:radial-gradient(700px 360px at 85% 0%,rgba(10,142,163,.35),transparent 60%),linear-gradient(160deg,var(--hero-a),var(--hero-b))}
.phead .wrap{padding-block:46px 40px;position:relative}
.phead .crumbs{font-size:14px;color:#aeb1dd;margin-bottom:14px}
.phead .crumbs a{color:#9be6f2}
.phead h1{font-size:clamp(28px,4vw,44px);color:#fff;margin-bottom:.25em}
.phead p{color:#cfd1f0;max-width:720px;font-size:18px;margin:0}
.phead .big{position:absolute;inset-inline-end:24px;top:-6px;font:700 clamp(100px,18vw,200px)/1 var(--fh);color:rgba(255,255,255,.06);pointer-events:none}

/* ===== Lesson layout ===== */
.lesson{display:grid;grid-template-columns:270px minmax(0,1fr);gap:36px;padding-block:36px 60px;align-items:start}
.toc{position:sticky;top:84px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);max-height:calc(100vh - 110px);overflow:auto}
.toc h4{font-size:14px;color:var(--muted);margin:2px 8px 10px}
.toc a{display:flex;gap:10px;padding:8px 10px;border-radius:10px;color:var(--ink);font-size:14.5px;line-height:1.55;align-items:flex-start}
.toc a:hover{background:var(--indigo-s);text-decoration:none}
.toc a.on{background:var(--teal-s);color:var(--teal-d);font-weight:600}
.toc a .dot{flex:none;width:20px;height:20px;border-radius:50%;border:2px solid var(--line);margin-top:3px;display:grid;place-items:center;font-size:11px;color:#fff}
.toc a.done .dot{background:var(--green);border-color:var(--green)}
.toc .sep{height:1px;background:var(--line);margin:10px 4px}
.toc .prog{padding:6px 8px 4px;font-size:13px;color:var(--muted)}
@media(max-width:900px){.lesson{grid-template-columns:1fr}.toc{position:static;max-height:none}}

.lsec{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px 30px 24px;margin-bottom:26px;box-shadow:var(--shadow);position:relative;transition:border-color .3s}
.lsec.done{border-color:var(--green)}
@supports (color: color-mix(in srgb, red 50%, blue)) { .lsec.done { border-color: color-mix(in srgb,var(--green) 55%,var(--line)) } }
.lsec .part{font:700 13px var(--fh);color:var(--teal-d);margin-bottom:6px;display:flex;align-items:center;gap:8px}
.lsec h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:.25em}
.lsec .sub{color:var(--muted);font-size:18px;margin-bottom:20px}
.kc{border-radius:12px;padding:15px 18px;margin-bottom:12px;border:1px solid var(--line);border-inline-start:5px solid var(--teal);background:var(--surface)}
.kc h4{font-size:17px;margin-bottom:4px;color:var(--ink)}
.kc p{margin:0;font-size:16.5px;line-height:1.85}
.kc.tip{background:var(--amber-s);border-inline-start-color:var(--amber)}
.kc.risk{background:var(--indigo-s);border-inline-start-color:var(--navy)}
:root[data-theme="dark"] .kc.risk{border-inline-start-color:#8d8cf0}
.kc.ok{background:var(--green-s);border-inline-start-color:var(--green)}
.kc.apply{background:var(--indigo-s);border-inline-start-color:var(--teal)}
.kc.apply h4{color:var(--teal-d)}
.kc .note{margin-top:12px}
.kc .note summary{cursor:pointer;font:600 14px var(--fb);color:var(--teal-d);list-style:none;display:inline-flex;gap:6px;align-items:center}
.kc .note summary::-webkit-details-marker{display:none}
.kc textarea{width:100%;min-height:84px;margin-top:8px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--surface);color:var(--ink);font:inherit;font-size:15.5px;resize:vertical}
.lfoot{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
.refs{font-size:14px;color:var(--muted)}
.refs a{display:inline-block;background:var(--surface-2);border:1px solid var(--line);border-radius:7px;padding:0 8px;margin-inline-start:4px;font-weight:600;color:var(--teal-d)}
.donebtn{display:inline-flex;gap:8px;align-items:center;background:transparent;border:1.5px solid var(--line);border-radius:10px;padding:7px 14px;font:600 14.5px var(--fb);color:var(--ink);transition:.2s}
.donebtn:hover{border-color:var(--green);color:var(--green)}
.donebtn[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#fff}
.toolcta{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* ===== Quiz ===== */
.quiz{background:linear-gradient(160deg,var(--hero-a),var(--hero-b));color:#fff;border-radius:22px;padding:30px;margin-top:10px}
.quiz h2{color:#fff;font-size:26px}
.quiz .q-meta{display:flex;justify-content:space-between;font-size:14px;color:#aeb1dd;margin-bottom:10px}
.quiz .q-bar{height:6px;background:rgba(255,255,255,.15);border-radius:9px;overflow:hidden;margin-bottom:22px}
.quiz .q-bar i{display:block;height:100%;background:linear-gradient(90deg,#7fe0ef,#8be9b5);width:0;transition:width .4s}
.quiz .q-text{font:600 20px/1.7 var(--fh);margin-bottom:16px}
.opts{display:grid;gap:10px}
.opt{display:flex;gap:12px;align-items:flex-start;text-align:start;width:100%;background:rgba(255,255,255,.07);border:1.5px solid rgba(255,255,255,.18);color:#fff;border-radius:13px;padding:13px 16px;font:500 16.5px/1.7 var(--fb);transition:.15s}
.opt:hover:not([disabled]){background:rgba(255,255,255,.14);border-color:#7fe0ef}
.opt .l{flex:none;width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.15);display:grid;place-items:center;font:700 13px var(--fh)}
.opt.right{background:rgba(78,213,155,.2);border-color:#4ed59b}.opt.right .l{background:#4ed59b;color:#06281b}
.opt.wrong{background:rgba(255,138,126,.18);border-color:#ff8a7e}.opt.wrong .l{background:#ff8a7e;color:#3a0a06}
.q-fb{margin-top:14px;padding:14px 16px;border-radius:12px;background:rgba(255,255,255,.08);font-size:16px;display:none}
.q-fb.show{display:block}
.q-nav{display:flex;justify-content:space-between;align-items:center;margin-top:18px;gap:10px;flex-wrap:wrap}
.q-res{text-align:center;padding:10px 0}
.q-res .score{font:700 64px/1 var(--fh);background:linear-gradient(90deg,#7fe0ef,#8be9b5);-webkit-background-clip:text;background-clip:text;color:transparent}
.q-res p{color:#cfd1f0}

/* ===== Prev/Next ===== */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}
.pn a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 20px;color:var(--ink)}
.pn a:hover{border-color:var(--teal);text-decoration:none;transform:translateY(-2px);transition:.2s}
.pn small{display:block;color:var(--muted);font-size:13px}
.pn a.nx{text-align:end}
@media(max-width:560px){.pn{grid-template-columns:1fr}.pn a.nx{text-align:start}}

/* ===== Tabs ===== */
.tabs{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-bottom:18px}
.tabs button{background:none;border:0;padding:10px 16px;border-radius:10px 10px 0 0;font:600 15.5px var(--fb);color:var(--muted);border-bottom:3px solid transparent;margin-bottom:-1px}
.tabs button:hover{color:var(--ink)}
.tabs button[aria-selected="true"]{color:var(--teal-d);border-bottom-color:var(--teal)}
.tpanel[hidden]{display:none}

/* ===== Template filler ===== */
.tpl{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.tpl-in{padding:18px 20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;background:var(--surface-2);border-bottom:1px solid var(--line)}
.tpl-in label{display:block;font:600 13.5px var(--fb);color:var(--muted);margin-bottom:4px}
.tpl-in input,.tpl-in textarea,.f-in,.f-ta,.f-sel{width:100%;border:1px solid var(--line);border-radius:10px;padding:9px 12px;background:var(--surface);color:var(--ink);font:inherit;font-size:15.5px}
.tpl-in textarea,.f-ta{min-height:90px;resize:vertical;line-height:1.7}
.tpl-in .wide{grid-column:1/-1}
.tpl-out{padding:18px 20px;position:relative}
.tpl-out pre{margin:0;white-space:pre-wrap;word-break:break-word;font:400 16px/2 var(--fb);color:var(--ink)}
.ph{background:var(--amber-s);color:var(--amber);border-radius:6px;padding:1px 7px;font-weight:600;border:1px dashed var(--amber);font-size:.93em}
@supports (color: color-mix(in srgb, red 50%, blue)) { .ph { border: 1px dashed color-mix(in srgb,var(--amber) 55%,transparent) } }
.fl{background:var(--teal-s);color:var(--teal-d);border-radius:6px;padding:1px 6px;font-weight:600}
.tpl-bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:12px 20px;border-top:1px solid var(--line);background:var(--surface-2)}
.tpl-bar .spacer{flex:1}
.fillmeter{font-size:13.5px;color:var(--muted)}

/* ===== Misc cards ===== */
.mini{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:16px}
.mini b{display:block;font:700 14px var(--fh);margin-bottom:4px;color:var(--teal-d)}
.sample{background:var(--indigo-s);border:1px dashed var(--line);border-radius:12px;padding:14px 16px;font-size:16px;white-space:pre-line}
@supports (color: color-mix(in srgb, red 50%, blue)) { .sample { border: 1px dashed color-mix(in srgb,var(--navy) 40%,var(--line)) } }
.sample .lab{display:block;font:700 13px var(--fh);color:var(--muted);margin-bottom:4px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:8px}
.steps li{counter-increment:s;display:flex;gap:12px;align-items:flex-start;font-size:16.5px}
.steps li:before{content:counter(s);flex:none;width:28px;height:28px;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;font:700 13px var(--fh);margin-top:2px}
.tcase{display:flex;gap:12px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);align-items:flex-start;margin-bottom:8px}
.tcase input{margin-top:8px;width:18px;height:18px;accent-color:var(--green)}
.tcase b{font:700 14px var(--fh);padding:2px 10px;border-radius:99px;margin-inline-end:8px;white-space:nowrap}
.tcase .n{background:var(--green-s);color:var(--green)}.tcase .m{background:var(--amber-s);color:var(--amber)}.tcase .e{background:var(--red-s);color:var(--red)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:760px){.two{grid-template-columns:1fr}}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:99px;padding:3px 12px;font:600 13px var(--fb);white-space:nowrap}
.badge.ok{background:var(--green-s);color:var(--green)}.badge.redir{background:var(--amber-s);color:var(--amber)}.badge.bad{background:var(--red-s);color:var(--red)}
.chip{display:inline-flex;gap:6px;align-items:center;background:var(--indigo-s);color:var(--ink);border:1px solid var(--line);border-radius:99px;padding:3px 12px;font-size:13.5px;font-weight:600}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chipbtn{background:var(--surface);border:1.5px solid var(--line);border-radius:99px;padding:6px 16px;font:600 14.5px var(--fb);color:var(--muted)}
.chipbtn:hover{border-color:var(--teal);color:var(--ink)}
.chipbtn[aria-pressed="true"]{background:var(--teal);border-color:var(--teal);color:#fff}

/* ===== Flow diagrams ===== */
.flow{display:flex;flex-direction:column;gap:0;max-width:640px;margin-inline:auto}
.fstep{display:flex;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-inline-start:5px solid var(--c);border-radius:14px;padding:14px 18px;box-shadow:var(--shadow);cursor:default;transition:.2s}
.fstep:hover{transform:translateX(-4px)}
.fstep .nn{flex:none;width:40px;height:40px;border-radius:50%;background:var(--c);color:#fff;display:grid;place-items:center;font:700 15px var(--fh)}
.fstep h4{margin:0;font-size:18px}.fstep span{color:var(--muted);font-size:15px}
.farrow{text-align:center;color:var(--amber);font-size:22px;line-height:1.1;padding:3px 0;font-weight:700}
.vtabs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:26px}

/* ===== Flip cards ===== */
.flip{perspective:1000px;min-height:230px}
.flip>button{all:unset;display:block;width:100%;height:100%;cursor:pointer;position:relative;min-height:230px;transform-style:preserve-3d;transition:transform .6s}
.flip.on>button{transform:rotateY(180deg)}
.flip .face{position:absolute;inset:0;backface-visibility:hidden;border-radius:16px;padding:22px;border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center;gap:10px}
.flip .front{background:var(--red-s)}
.flip .back{background:var(--green-s);transform:rotateY(180deg)}
.flip .no{font:700 13px var(--fh);color:var(--muted)}
.flip h3{font-size:20px;margin:0}
.flip .why{font-size:15.5px;line-height:1.75;margin:0}
.flip .hint{font-size:13px;color:var(--muted)}
.flip .back strong{display:block;font:700 13px var(--fh);color:var(--green)}
@media(prefers-reduced-motion:reduce){.flip>button{transition:none}}

/* ===== Compare (cases) ===== */
.case{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;margin-bottom:22px;box-shadow:var(--shadow)}
.case .fld{display:inline-flex;font:700 13px var(--fh);color:var(--teal-d);background:var(--teal-s);padding:3px 14px;border-radius:99px;margin-bottom:10px}
.case h3{font-size:24px}
.case .task{background:var(--indigo-s);border-radius:12px;padding:12px 16px;margin-bottom:16px}
.pick{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:760px){.pick{grid-template-columns:1fr}}
.pbtn{text-align:start;background:var(--surface-2);border:2px solid var(--line);border-radius:14px;padding:16px;font-size:16.5px;line-height:1.85;transition:.2s;position:relative;white-space:pre-line}
.pbtn:hover:not([disabled]){border-color:var(--teal)}
.pbtn .lbl{display:block;font:700 13px var(--fh);color:var(--muted);margin-bottom:6px}
.pbtn.good{border-color:var(--green);background:var(--green-s)}
.pbtn.bad{border-color:var(--red);background:var(--red-s)}
.pbtn .tag{position:absolute;inset-inline-end:12px;top:12px;font:700 12px var(--fh);padding:2px 10px;border-radius:99px}
.pbtn.good .tag{background:var(--green);color:#fff}.pbtn.bad .tag{background:var(--red);color:#fff}
.reveal{display:none;margin-top:14px}.reveal.show{display:block}

/* ===== Rubric tool ===== */
.rb{display:grid;gap:12px}
.rbrow{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.rbrow h4{font-size:17px;margin-bottom:8px}
.rbopts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
@media(max-width:620px){.rbopts{grid-template-columns:1fr}}
.rbopts label{display:flex;gap:8px;align-items:flex-start;border:1.5px solid var(--line);border-radius:11px;padding:9px 11px;cursor:pointer;font-size:14.5px;line-height:1.6;transition:.15s}
.rbopts label:hover{border-color:var(--teal)}
.rbopts input{margin-top:5px;accent-color:var(--teal)}
.rbopts label:has(input:checked){border-color:var(--teal);background:var(--teal-s)}
.rbopts label b{display:block;font:700 13px var(--fh);color:var(--teal-d)}
.verdict{border-radius:18px;padding:22px 24px;border:2px solid var(--line);background:var(--surface);position:sticky;top:84px}
.verdict .vs{font:700 56px/1 var(--fh)}
.verdict .vd{font:700 22px var(--fh);margin:8px 0}
.verdict.accept{border-color:var(--green);background:var(--green-s)}
.verdict.edit{border-color:var(--amber);background:var(--amber-s)}
.verdict.reject{border-color:var(--red);background:var(--red-s)}
.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start}
@media(max-width:900px){.split{grid-template-columns:1fr}.verdict{position:static}}
.tbl{width:100%;border-collapse:collapse;font-size:15.5px;background:var(--surface);border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.tbl th,.tbl td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:start}
.tbl th{background:var(--indigo-s);font:700 14px var(--fh)}
.tbl input[type=number]{width:72px;border:1px solid var(--line);border-radius:8px;padding:6px;background:var(--surface);color:var(--ink);font:inherit}
.tbl input[type=text]{width:100%;border:1px solid var(--line);border-radius:8px;padding:6px 8px;background:var(--surface);color:var(--ink);font:inherit}
.tblwrap{overflow-x:auto}

/* ===== Builder ===== */
.bgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}
@media(max-width:960px){.bgrid{grid-template-columns:1fr}}
.pil{background:var(--surface);border:1px solid var(--line);border-inline-start:5px solid var(--c,var(--teal));border-radius:14px;padding:14px 16px;margin-bottom:12px}
.pil label{display:flex;gap:8px;align-items:center;font:700 16px var(--fh);margin-bottom:2px}
.pil label i{width:30px;height:30px;border-radius:9px;background:var(--c,var(--teal));color:#fff;display:grid;place-items:center;font:700 15px var(--fh);font-style:normal}
.pil small{display:block;color:var(--muted);font-size:13.5px;margin-bottom:6px}
.pil .st{margin-inline-start:auto;font-size:18px}
.out{position:sticky;top:84px;background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.out header{padding:14px 18px;background:var(--navy);color:#fff;display:flex;gap:10px;align-items:center;justify-content:space-between}
.out header b{font:700 16px var(--fh)}
.out pre{margin:0;padding:18px;white-space:pre-wrap;word-break:break-word;font:400 16px/1.95 var(--fb);min-height:200px}
.meter{display:flex;gap:6px;padding:12px 18px;border-top:1px solid var(--line)}
.meter i{flex:1;height:8px;border-radius:9px;background:var(--line);transition:.3s}
.meter i.on{background:linear-gradient(90deg,var(--teal),var(--green))}
.hints{padding:4px 18px 16px;font-size:15px}
.hints li{margin-bottom:6px}
.hints ul{margin:0;padding-inline-start:20px}
.warn{color:var(--amber)}.okc{color:var(--green)}
@media(max-width:960px){.out{position:static}}

/* ===== Check list / glossary / refs ===== */
.ck{display:grid;gap:10px}
.ck label{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-inline-start:5px solid var(--teal);border-radius:12px;padding:14px 18px;cursor:pointer}
.ck label:has(input:checked){background:var(--green-s);border-inline-start-color:var(--green)}
.ck label b{font:700 14px var(--fh);color:var(--teal-d);min-width:26px}
.ck input{width:20px;height:20px;margin-top:5px;accent-color:var(--green);flex:none}
.ck .note{flex:1}
.ck .note input[type=text]{width:100%;margin-top:6px;border:0;border-bottom:1px dashed var(--line);background:transparent;color:var(--ink);font:inherit;font-size:14px;height:auto;padding:4px 0}
.search{position:relative;max-width:560px;margin-bottom:22px}
.search input{width:100%;padding:14px 48px 14px 18px;border-radius:14px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);font:inherit;font-size:17px}
.search input:focus{border-color:var(--teal);outline:none}
.search span{position:absolute;inset-inline-end:16px;top:50%;transform:translateY(-50%);color:var(--muted)}
.term{background:var(--surface);border:1px solid var(--line);border-inline-start:5px solid var(--teal);border-radius:14px;padding:16px 20px}
.term h3{font-size:19px;margin:0 0 2px}
.term .en{font:600 14px var(--fb);color:var(--teal-d);direction:ltr;text-align:start;unicode-bidi:isolate;display:block;margin-bottom:4px}
.term p{margin:0;color:var(--muted);font-size:16px}
.refrow{display:grid;grid-template-columns:52px 1fr auto;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:10px}
.refrow .n{font:700 20px var(--fh);color:var(--teal-d);text-align:center}
.refrow .ti{direction:ltr;text-align:start;font:600 16px/1.5 var(--fb);unicode-bidi:isolate}
.refrow small{display:block;color:var(--muted);font-size:13.5px;direction:rtl;text-align:start}
.refrow:target{outline:3px solid var(--teal)}
@media(max-width:620px){.refrow{grid-template-columns:40px 1fr}.refrow .badge{grid-column:2}}

/* ===== Progress ring (home) ===== */
.ring{--p:0;width:120px;height:120px;border-radius:50%;background:conic-gradient(var(--green) calc(var(--p)*1%),var(--line) 0);display:grid;place-items:center;flex:none}
.ring b{width:94px;height:94px;border-radius:50%;background:var(--surface);display:grid;place-items:center;font:700 26px var(--fh)}
.prog-card{display:flex;gap:26px;align-items:center;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px 30px;box-shadow:var(--shadow)}

/* ===== Footer ===== */
.ftr{background:var(--navy-d,#0e0d2c);color:#b6b8dc;padding-block:44px 28px;margin-top:40px;font-size:15px;line-height:1.8}
:root[data-theme="dark"] .ftr{background:#07061c}
.ftr .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;margin-bottom:28px}
@media(max-width:760px){.ftr .cols{grid-template-columns:1fr}}
.ftr h4{color:#fff;font-size:16px}
.ftr a{color:#9be6f2}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr small{display:block;border-top:1px solid rgba(255,255,255,.1);padding-top:18px;color:#8d90bf}
.toast{position:fixed;bottom:24px;inset-inline-start:50%;transform:translate(50%,30px);background:#17173a;color:#fff;border:1px solid rgba(255,255,255,.2);padding:11px 20px;border-radius:12px;opacity:0;transition:.3s;z-index:200;pointer-events:none;font-size:15px}
:root[dir=rtl] .toast.show{transform:translate(50%,0);opacity:1}

/* ===== Print ===== */
@media print{
  .hdr,.ftr,.toc,.cta,.btn,.tpl-bar,.pn,.skip,.no-print{display:none!important}
  body{background:#fff;color:#000;font-size:14px}
  .phead,.hero{background:#fff!important;color:#000}.phead h1,.phead p,.phead .crumbs{color:#000}
  .lsec,.case,.ck label,.tile{box-shadow:none;break-inside:avoid}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
input[type=range]{accent-color:var(--teal)}
@media(max-width:900px){.toc a,.toc h4,.toc .sep{display:none}.toc{padding:12px 16px}}

/* ===== أنماط كانت مضمّنة في الصفحات (CSP تمنع style=) ===== */
[data-s="1"]{background:rgba(255,255,255,.1) !important;color:#fff !important}
[data-s="2"]{padding-block:36px 50px !important;max-width:860px !important}
[data-s="3"]{padding-block:36px 50px !important;max-width:900px !important}
[data-s="4"]{cursor:pointer !important}
[data-s="5"]{font:700 17px var(--fh) !important}
[data-s="6"]{margin-top:8px !important}
[data-s="7"]{font-size:18px !important;margin:16px 0 8px !important}
[data-s="8"]{margin-top:14px !important}
[data-s="9"]{margin-bottom:0 !important}
[data-s="10"]{padding-block:36px 50px !important}
[data-s="11"]{margin-bottom:22px !important}
[data-s="12"]{align-self:center !important}
[data-s="13"]{--c:#4b49b8 !important}
[data-s="14"]{--c:#0a8ea3 !important}
[data-s="15"]{--c:#1e8a5a !important}
[data-s="16"]{--c:#c98a1c !important}
[data-s="17"]{display:flex !important;gap:8px !important}
[data-s="18"]{padding-block:36px 50px !important;max-width:980px !important}
[data-s="19"]{font:600 16px var(--fh) !important}
[data-s="20"]{font-weight:600 !important;margin:14px 0 8px !important}
[data-s="21"]{margin-top:10px !important}
[data-s="22"]{margin-top:12px !important}
[data-s="23"]{font:700 15px var(--fh) !important}
[data-s="24"]{margin:6px 0 12px !important}
[data-s="25"]{font-size:18px !important;margin:22px 0 10px !important}
[data-s="26"]{margin-bottom:8px !important}
[data-s="27"]{font-size:16px !important}
[data-s="28"]{padding-block:36px 50px !important;max-width:820px !important}
[data-s="29"]{margin-top:14px !important;font-size:15px !important}
[data-s="30"]{margin-top:-10px !important}
[data-s="31"]{flex:1 !important;min-width:240px !important}
[data-s="32"]{margin-bottom:6px !important}
[data-s="33"]{margin-bottom:12px !important}
[data-s="34"]{grid-template-columns:repeat(auto-fill,minmax(240px,1fr)) !important}
[data-s="35"]{margin-bottom:24px !important}
[data-s="36"]{flex-basis:100% !important;font:700 13px var(--fh) !important;color:var(--muted) !important;margin-top:0px !important}
[data-s="37"]{flex-basis:100% !important;font:700 13px var(--fh) !important;color:var(--muted) !important;margin-top:10px !important}
[data-s="38"]{margin:0 !important}
[data-s="39"]{margin-top:16px !important}
[data-s="40"]{margin:14px 0 0 !important;font-size:15px !important}
[data-s="41"]{padding-block:36px 20px !important}
[data-s="42"]{font-size:19px !important}
[data-s="43"]{margin-top:28px !important}
[data-s="44"]{padding-bottom:50px !important;max-width:860px !important}
[data-s="45"]{margin-top:6px !important}
[data-s="46"]{font-size:19px !important;margin:20px 0 10px !important}
[data-s="47"]{font-size:19px !important;margin:22px 0 10px !important}
[data-s="48"]{font-weight:400 !important}
[data-s="49"]{border-inline-start-color:var(--red) !important;background:var(--red-s) !important}
[data-s="50"]{padding-block:36px 50px !important;max-width:940px !important}
[data-s="51"]{font-size:14px !important}
[data-s="52"]{font-size:13.5px !important;margin:12px 0 0 !important}
[data-s="53"]{margin:14px 0 18px !important}
[data-s="54"]{display:flex !important;gap:10px !important;align-items:center !important;font-size:15px !important}
[data-s="55"]{padding-block:36px 10px !important}
[data-s="56"]{margin:12px 0 0 !important;padding-inline-start:20px !important;line-height:2 !important}
[data-s="57"]{padding-block:30px 10px !important}
[data-s="58"]{padding-block:30px 50px !important}
[data-s="59"]{white-space:pre-wrap !important;font:inherit !important;line-height:1.9 !important;margin:8px 0 0 !important}
[data-s="60"]{margin-top:18px !important}
[data-s="61"]{border-style:dashed !important}
[data-s="62"]{max-width:760px !important;margin-inline:auto !important}
[data-s="63"]{margin:22px 0 0 !important}
[data-s="64"]{padding-block:20px 50px !important;max-width:860px !important}
[data-s="65"]{margin-top:30px !important}
.big-n{font:700 34px var(--fh)}
.cmp-msg{margin:12px 0 0}

.site-logo{flex:0 0 auto;border-radius:10px;overflow:hidden}
.site-logo img{display:block;width:36px;height:36px;border-radius:10px}

/* ===== ترويسة: شعار الموقع الأم + بحث ===== */
.brand-wrap{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.site-up{font:500 11px var(--fb);color:#7fe0ef;letter-spacing:.04em}
.site-up:hover{text-decoration:underline}
.hsearch{position:relative;flex:0 1 230px;min-width:0}
.hsearch input{width:100%;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.09);color:#fff;padding:0 14px;font:500 15px var(--fb);-webkit-appearance:none;appearance:none}
.hsearch input::placeholder{color:#b5b7dc}
.hsearch input:focus{outline:2px solid #7fe0ef;outline-offset:2px;background:rgba(255,255,255,.14)}
.hres{position:absolute;top:calc(100% + 8px);inset-inline:0;min-width:320px;max-height:70vh;overflow:auto;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:6px;z-index:70}
.hres a{display:block;padding:9px 12px;border-radius:9px;color:var(--ink)}
.hres a:hover,.hres a.on{background:var(--indigo-s);text-decoration:none}
.hres b{display:block;font-size:14.5px;line-height:1.5}
.hres small{display:block;color:var(--muted);font-size:12.5px;line-height:1.6}
.hres .none{padding:12px;color:var(--muted);font-size:14px}
.nav>a.nav-up{display:none}
@media (max-width:980px){
  .hdr .wrap{flex-wrap:wrap;height:auto;padding-block:10px;gap:10px 12px}
  .hsearch{order:9;flex:1 0 100%}
  .hres{min-width:0}
  .nav{inset:var(--hdr-h,116px) 0 0 0}
  .nav>a.nav-up{display:flex;margin-top:10px;padding:12px;border-top:1px solid rgba(255,255,255,.12);color:#7fe0ef;font-size:16px}
  html{scroll-padding-top:128px}
  .toc,.verdict,.out{top:128px}
}